Homeostasis and Thermoregulation

In what are three ways does your body lose heat?

• Evaporation of sweat

• Warm air exhaled out

• Hairs becoming erect

• Vasodilation

Which process produces heat in every living cell?

• Digestion

• Respiration

• Protein synthesis

• Photosynthesis

How is heat transferred around the body?

• Blood

• Water

• Sweat

• Skin

Why is the human body's core temperature 37^oC?

• Optimum temperature for enzymes

• No specific reason

• To limit the enzymes rate of reaction

• It's not 37^oC

Which organ in the body produces the most heat?

• Brain

• Small intestine

• Heart

• Liver

What is homeostasis?

• The maintenance of a constant internal environment

• The maintenance of a constant external environment

• The maintenance of an inconstant internal environment

• Negative feedback

If the environment gets cold, we will often shiver in order to _______.

• keep body temperature the same as the external temperature
• decrease body temperature
• increase body temperature
• regulate blood pressure

Homeostasis in the human body is often maintained by a _______.

• neutral feedback loop 
• solar feedback loop
• positive feedback loop
• negative feedback loop

What is the evaporation of a liquid to cool the body?

• Shivering
• Sweating
• Vasodilation
• Vasoconstriction

The term for maintaining an internal temperature is _______.

• thermoregulation

• thermometer

• homeothermal

• homeostasis